博碩士論文 93522070 詳細資訊




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姓名 鄭師堯(Shih-Yao Cheng)  查詢紙本館藏   畢業系所 資訊工程學系
論文名稱 整合 WiMAX/ Wi-Fi Mesh 網路之無線網路管理系統
(Wireless Network Management System for WiMAX/ Wi-Fi Mesh Networks)
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摘要(中) 幾種無線技術的發展使得無線網路得以邁向無所不在的建置,創新的寬頻無線技術不斷推陳出新,例如Wi-Fi已經是一個相當成熟的無線網路存取技術,電子電機工程師學會 (the Institute of Electrical and Electronic Engineers ,簡稱為IEEE) 在1999年提出了擁有高速的傳輸頻寬和廣大的基地台涵蓋範圍的 WiMAX 寬頻無線擷取網路技術以期成為無線都會網路的標準技術。近來,越來越多的研究在上述無線技術的基礎上增加 mesh 網路的技術,這項技術可以藉由簡單的安裝達到擴大網路涵蓋範圍的目的。 Intel[1] 指出,整合 WiMAX/ Wi-Fi mesh network 是目前建設無線都會網路最好的方案。
儘管網路管理一直是個重要的議題,傳統的網路管理系統針對 WiMAX/ Wi-Fi mesh 網路架構還是有許多研究的空間。例如, WiMAX/ Wi-Fi radio management, Mesh network topology 等等。而在 WiMAX/ Wi-Fi mesh network 這種階層式網路架構下, WMAX 之 SS必定會成為流量的瓶頸,故我們必須對 WiMAX 與 Wi-Fi 網路間之介接線路做頻寬管理。在本論文中我們提出一套針對 WiMAX/ Wi-Fi mesh network 架構設計的網頁界面 WiMAX/ Wi-Fi mesh 網路管理系統,並且實作此系統於國立中央大學及國立暨南大學中。亦對 WiMAX SS 加上一台 Diffserv Edge Router ,使得 WiMAX/ Wi-Fi mesh 網路管理系統模組可以藉由監控 WiMAX/ Wi-Fi mesh 網路狀態,並計算 WiMAX SS 目前之可用頻寬。進而去設定 Diffserv Edge Router ,從管制輸入佇列來控制 WiMAX SS 的頻寬分配,達成動態分配頻寬給多個 Wi-Fi mesh networks 之目的。
摘要(英) Wireless network strides forward ubiquitous development, and it is composed by several kinds of wireless technologies. New broadband wireless technologies grow up rapidly. Wi-Fi is already a ripe wireless access technology, and the Institute of Electrical and Electronic Engineers (IEEE) proposed WiMAX broadband wireless access technology with high speed access rate and widespread coverage as standard WMAN technology. Recently, many researches focused on mesh network based on those wireless technologies which could extend coverage with convenient installation. For the development of WMAN, the two different wireless technologies plus mesh technology would be the best solution [1] .
Network management is always an important issue to manage various network devices. However, traditional wireless network management systems have to be improved to manage WiMAX/ Wi-Fi mesh networks effectively. For example: WiMAX/ Wi-Fi radio management, Mesh network topology and so on. In the architecture of WiMAX/ Wi-Fi mesh networks, WiMAX SS would becomes the bottleneck of bandwidth. We need to do bandwidth management among WiMAX SS and Wi-Fi mesh networks connected with it. The paper proposes a web-based WiMAX/ Wi-Fi mesh Network Management System (NMS) and implemented the system in National Central University (NCU) hierarchically. We also implement a diffserv router bundled with a WiMAX SS, so our proposed NMS could allocate bandwidth to multiple Wi-Fi mesh networks connected with WiMAX SS. The proposed NMS measure current available bandwidth on WiMAX SS by monitoring WiMAX/ Wi-Fi mesh network status change, and control the input queue to reach the goal for reallocating bandwidth on WiMAX SS.
關鍵字(中) ★ mesh
★ 網路管理
★ 頻寬分配
★ Wi-Fi
★ WiMAX
關鍵字(英) ★ mesh
★ network management
★ Bandwidth allocation
★ Wi-Fi
★ WiMAX
論文目次 Chapter 1. Introduction...............................................................................................1
1.1 Motivation......................................................................................................2
1.2 Goals ..............................................................................................................3
1.3 Thesis Organization .......................................................................................4
Chapter 2. Related Works ...........................................................................................5
2.1 Simple Network Management Protocol (SNMP) ..........................................5
2.2 Wireless networks ..........................................................................................8
2.2.1 Wi-Fi technology .......................................................................................9
2.2.2 WiMAX technology.................................................................................12
2.2.3 Wireless mesh networks...........................................................................19
2.3 Wireless management ..................................................................................21
2.4 Differentiated Services on Linux Platforms ................................................22
2.5 Survey of Today’s wireless network management systems .........................25
2.5.1 Symbol Wireless Switch 5000 .................................................................26
2.5.2 Redline communications RedAccess Network Management System .....27
2.5.3 HotView ProTM Mesh Management Software .........................................28
2.5.4 MeshDynamic's Network Management System ......................................30
Chapter 3. Proposed WiMAX/ Wi-Fi mesh Network Management System.........33
3.1 System modeling and assumptions ..............................................................33
3.2 System architecture......................................................................................36
3.2.1 GUI module .............................................................................................39
3.2.2 Authorization module ..............................................................................40
3.2.3 Discovery module ....................................................................................41
3.2.4 Monitor module .......................................................................................44
3.2.5 Performance module ................................................................................46
3.2.6 Bandwidth module...................................................................................48
3.3 System function ...........................................................................................51
3.3.1 Functions of Bandwidth module..............................................................51
3.3.2 Functions of GUI module ........................................................................52
3.3.3 Functions of discover module..................................................................52
3.3.4 Functions of monitor module...................................................................53
3.3.5 Functions of authorization module ..........................................................54
3.3.6 Functions of performance module ...........................................................55
Chapter 4. System Implementation..........................................................................55
4.1 WiMAX/ Wi-Fi mesh netork in NCU and NCNU.......................................56
4.2 Demonstration..............................................................................................59
Chapter 5. Experiment and Discussions ..................................................................63
5.1 Experiment 1: Power control for Wi-Fi mesh device ..................................63
5.2 Experiment 2: Monitoring for changing mesh topology..............................65
5.3 Experiment 3: Bandwidth measurement for Proxim MP16 3500................68
5.4 Experiment 4: Bandwidth measurement with bandwidth allocation for
Proxim MP16 3500..................................................................................................75
Chapter 6. Conclusions and future work.................................................................87
References...................................................................................................................90
Appendix A. IEEE 802.16 MIB structure for SNMP..............................................96
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指導教授 周立德(Li-Der Chou) 審核日期 2006-7-25
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